Transparency under Klassy

Has anyone had any success with transparency under Klassy? No matter what I do, transparency just doesn’t seem to be a thing since the transition to KDE 6.

I have no problem. I use Klassy with Arch, Fedora, Tumbleweed, Kubuntu and KDEneon and all have transparency.

Well I don’t know what I’m missing here, but it’s definitely not working.

Running X11 with fractional scaling.